Wrench



J. A. GILES A rii 17, 1928.

WRENCH Filed Jul)! 12- 1926 2 Sheets-Shoot 1 16' INVENTOR Juliqzz. A. Giles J. A. GILES April 11, 1 28 WRENCH v Filed July 12. 1926 2 Sheets-Sheet 2 4 INVENTOR I Julian A, Gila;

BY ATf NEYI Y v a 9 of construction and combinations of parts, as

P tented Apr." 17,1928. a

U IT S TE JULIAN A. GILES, or. nnnnmoOnNEbrricnr.

Application filed July 12,

This invention relates towrenches, having for its ob ect, among other things, to pro,- vide aiwrench whereinthe movable aw may be adjusted relatively tolthefixed, jaw

the several figures;

with the greatest case, either. the'worm, "or by pressure upon the endthereo'f, andto so -support the worm. thatit will have the maximum vrange of movement, V

F To these, and other ends, my invention consists in the wrench, having certain details will be hereinafter described and more particularly'pointed out'in-theclaims; I

Referrlng to the drawings, in whichlike numerals of referenceides gnate.like parts in Figure 1 is a view of the forward end ofa wrench constructedin accordance with my invention, with the parts in theposition 00- cupied by them asthe objectf is gripped be- Figure E is a similar view'with the inov able jaw out of engagement withthe said object;

Figure 3 is atransverse sectional view ofthe wrench, the parts in section being in the e 'planeindicated generally by the line 33 of i 1; a a i a a Figure 4 is a view, partly in sectlon', showing them'ovable jaw in another of its relative 'F1gure 5 "sa view' with the movable ja-W is substantially the samerelative posit on as is shown'inFigure 2, with theworm'nioved- 'being at" substantially a right angle to .the --former, and secured thereto, by the -p1n26 or the like,is a fixed jaw 27, These slotsare 'c'losed atonesidezby the member 15, pref erably secured to the head 11 by the rivets; '16-or thelike- The inner-wall of this menuberh'as two faceslz and 1 8 at'ananglefto each other, and theilowerwall -19 of the slot V l 7 IQ is substantially but'not necessarily paral- "lelwiththe face18.

' *Slidably mounted within theslots and l iris the movablejaw 20, the shank21-of which terminates atone end in a'tail pon" tion 23,havi'ng a face "24, upon which the 5fthumb or'finger is placed when manually Figure 5 the worm has been moved toa p0 sit-ion where thethread thereon"is -out of engagement with the .teeth, in; the movable manipulati'ng 'the fixed pin bl v I vides a stop to limit the outward'mo' vement v I of the jaw 20.

1 Threaded into' an Within the opening 12 is the worm 31,

having a'j thread thereon] which meshes .into

the teeth22of the-movable jaw 20.jflThis v l opening in the liad gll l IS a stud-28 upon theshank29 of which is" v rotatably mounted the semi-'sphericalblock e worm is provided at one end with afsem-i spherical; seat. 32, into which projects, the v block 30, and withinthe, axial-opening 33,

therein is a plug'or movable member .342, have mg an opening 35Etherein, between-thebote tom of which and the bottom of the openingi 33 is the spring 36. I The outer end of'the plug 34 is formed with a cam face .37, which is maintainedyin] contact with the cam surface 38 upon the head 11 by the spring 36.

The wornn31 is:rotatable about its ax'is l upon the 'block30 and plug or movable mem- 1 her 34' and also" has an Oscillating-movement.

upon the block 30 against the tension of the cillating upon the block 130, thelwornl and vmovablevmember being so. mounted "that spring 36, which will yield 'sufil'ciently to permit the worm'to be moved to a position v substantially parallel with its axis whileos each hasan endwise movement upon a com; mon ax1s.- These several 1 positions 'of the worm, are allustrated 1n the drawlngsp In Figure 1, the :worm isillustrated as being in i engagement ,with the movable jaw; in: Figures, 2an'd 4} the .worm still maintains its engagement with the: movable jaw but the" i latter-isin another relative position; and in jaw. In this latter'pos'ition the movable jaw will slide ,freely'within the head "11 unrestrained by theworm :Imm'e'diately upon release of the pressure oftheflfingers upon the worm 31, after; the same hasvbeen moved to'the position shown in Figure 5,.the spring 36 will; return the worm-to a. position where,

the threadthereon will engage the teeth of, the movable jaw assisted bythe engage- :ment ofthecam faces 3,7"and 38. q

With the part'sjasshown in Figures 1,2, 3 and 4, the position of the movable jaw within the head toward the fixed jawwmay v be varied by pressureupon the, outer. end of the jaw. Movement in the opposite direction is obtained by manual rotation of the worm 31. During this movement of the jaw within the head the worm 81 yields sutficiently upon its support by reason of the angular face on the thread upon the worm 31 and a similar angular face upon the teeth 22. The floating action of the worm permits of an easy and quick adjustment of the movablejaw, either with or without. manual manipulation of the wornn rlfor insta'nce,when the head of the wrench is positioned where it is difficult to control the manual movement of the'movable jaw. as in a cdrner'or the like, a slight pressure applied to the end of the jaw by placing the same in contact with a fixed wall or the like, will push the movable jaw toward the fixed jaw. A reverse movement may be obtained by merely shifting the relative position of the worm and allowing the movable jaw to slide by gravity'to its outermost position.

As there are no parts projecting outside of the walls'of the head 11 this wrench may be operated in any space that will receive 7 such head.

The edge face of the movable jaw opposite to the toothed edge in twoof its extreme positions contacts with the faces 17 and 18 and forms a rigid and substantial support therefor. The junction point 39 of these two faces provides a convenient rocking surface for the movable jaw while shifting from one positionto the other of its extremepositions. I V

' While I have shown a simple and convenient means for providing a floating-support for the worm within the head, other means may be utilized to accomplish the same purpose within the spiritof my invention.

While the drawings herein "shown disclose the handle as substantially parallel with the head 11, my improved mechanism is equally as well. adapted to any other type of wrench, for instance, wherein the handle is at an angle to the sliding jaw.

Having described my invention, what I claim as new and desire to secure by Letters 1. A wrench having ahead; a fixed jaw; a movable jaw associated with the fixed jaw so as to have a rocking and lengthwise movement relatively thereto; a Worm for imparting lengthwise movement to the movable jaw, having therewith; and means for mounting the worm, whereby the same will maintain its engagement wlth the movable jaw while the same is rocked relatively to the fixed jaw and also movable into and out'of its engagement with the movable jaw in a circular patln the center of which 'is adjacent to one end of the worm.

2. A wrench having a head; a fixed jaw; a movable jaw associated with the fixed jaw a separable toothed engagement so as to have a rocking and. lengthwise movement relatively thereto; a worm for imparting lengthwise movement to the movable jaw, having a separable toothed engagement therewith; and means, including an independent member, for mounting the worm, whereby the same will maintain its engagement with the movable jaw while the same is rocked relatively to the fixed jaw and also movable into and out of its engagement with the movable. jaw in a circular path, the center of which is adjacent to one end of the worm, the independent member during this movement supporting one end of the worm. j

3. A wrench having a head with a cam face thereon, a'fixed jaw, a movable jaw, a worm mounted in the head, and a member formino in art a. sn ort for the worm,

. b 0 havin contact with the said cam race and b 3 by reason thereof movable in one direction substantially parallel wlth the axis of the worm.

'4. A wrench having a head with a cam face thereon, a fixed jaw, a movable jaw, a worm mounted in the head, a member forming in part a support for the worm, having contact with the said cam face, and by reason thereof movable in onedirection substantially parallel with the axis of the worm, and

yielding means'for moving the member in the reverse direction.

'5. A wrench having a head Wltll a cam face thereon. a fixed jaw, a movable jaw.

associated with the fixed jaw so as to have a rocking and lengthwise movement relatively thereto. a worm mounted in the head and having a separable toothed engagement with the movable jaw during its movement,

and having an opening therein, a member slidably mounted within the opening having engagement with the cam face and whereby it acquires movement in one direction substantially parallelwith its axis, and a spring exerting its tension so as to move the member in the reverse direction 6. A wrench having a head, a fixed'jaw, a movable jaw, associated with the fixed jaw having a rocking andv lengthwise movement relatively thereto, a semi-spherical member adjacent to the fixed jaw, a wormjournaled on said semi-spherical member and movable in a circular path during the movement of the movable jaw, the center of which is semi-spherical member, and a member movable toward and away fromthe semi-spherical member and forming a support for the worm, adjacent to one end thereof.

7 A wrench having a head, a fixed jaw connected therewith, a worm, a movable member forming a support for the worm, and means for actuating said member whereby it may impart to the worm an oscillating movement relatively to the head the worm and movable member being so mounted that the each has an endwise movement upon a common axis. I I

8. A wrench having'a: head, a fixed jaw connected therewith, a worm, 'a movable member forming a support for the worm,

and cam means for actuating said member whereby-1t may impart an oscillating move"- ment to the worm relatively to the head the I worm and movable member being so mounted that each has an endwise movement. upon a common axis.

'9. A wrench having ahead, a fixed jaw? connected .therew1th, -a worm, a movable member forming a supportfor the worm,

and means, including a spring, for. actuating said member whereby it may impart to the worm an oscillating. movement relatively to the head the worm and movable member be ing so mounted that each has anendwise movement upon a common axis,

. 10. A wrench having a head, .a fixed jaw connected therewith, a worm, a movable memberv forming a support for the worm,

and means, including a cam and spring, for

actuating saiclmember whereby it may impart to the, worm an oscillating movement relatively to the head the worm and movable member being so mounted that each has an endwise movement upon a common axis.

v11. A wrench having a head;- a fixed jaw; a movable jawassociated with the fixed jaw so as to have a rocking and lengthwise move- Yment relatively thereto; a worm for imparting lengthwise movement to the movable jaw, having a separable toothed engagement therewith, and means which operate automatically to move the worm toward the movable jaw and into engagement therewithfrom any position in which the worm may be placed and irrespective of the position'of the movable j awrelative to the head.

12' A wrench having ahead; a fixed jaw;

a movable jaw associated withthe fixed jaw so as to have a rocking and lengthwise move ment relativelythereto; a worm for impart-Q ing'lengthwlse movement to the movable jaw,'having a separable toothed engagement therewith; and means, including in part an. "independent member, for vmounting the worm, whereby the same will maintain its same is rocked relatively to the fixed jaw and alsomovable in a circular path into and out of engagementwith the movable 'jaw ,'the

oenter'of such path being adjacent to one end; of the-worm, and the'independentmember during this movement supporting'jone engagement with the movablejaw while the end of the worm and' having a lengthwisef whereby the same may be moved in a sub-a stantially straight path "toward and away froml opposite walls of the opening .and'a circular path, the center of which is adjacent to one of said walls. In test monywhe'reo fixed my signature.

JULIAN A." GI Es,.-

f, I havehereunto af- 7' 

